Texture not Showing in Rendering
I took a look at it , and you did something strange with the material . I deleted the material first



then i added a new material with the + button



then i did the steps to add a texture :

-Image or movie
- Wrap mode : UV

I also turned on Ambient occlusion in the world properties



My guess is that it is a bug , Or you did something i did not see.

EDIT : also make sure you dont have extension changed unless you know what it does



keep it on repeat .